.bottom-tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  .MuiBottomNavigation-root {
    img {
      width: 60px;
      height: 60px;
    }
    span {
      font-size: 40px;
      color: #ccc;
      // opacity: 1;
    }
    .Mui-selected {
      span {
        color: #2E57FF;
      }
    }
  }
}